Fermion contribution to the static quantities of arbitrarily charged vector bosons
Abstract
We present an analysis of the one-loop contribution from left- and right-handed fermions to the static electromagnetic properties of an arbitrarily charged no self-conjugate vector boson . Particular emphasis is given to the case of a no self-conjugate neutral boson . Regardless the electric charge of the boson, a fermionic loop can induce the two CP-even form factors but only one CP-odd. As a result the corresponding electric dipole moment is directly proportional to the magnetic quadrupole moment. The CP-odd form factor might be severely suppressed since it requires the presence of both left- and right-handed fermions. The behavior of the form factors is analyzed for several scenarios of the fermion masses in the context of the decoupling theorem.
Cite
@article{arxiv.hep-ph/0405008,
title = {Fermion contribution to the static quantities of arbitrarily charged vector bosons},
author = {G. Tavares-Velasco and J. J. Toscano},
journal= {arXiv preprint arXiv:hep-ph/0405008},
year = {2009}
}
Comments
12 pages, 3 figures, submitted to Journal of Physics G